Sectional sash-weight.



W, S. SANBORN.

SEGTIUNAL SASH WEIGHT.

APPLIOATION FILED mp9, x905.

Patented 390%.

of Massachusetts, have invented an Improvem representing'like parts.

35 'moved by hand as will 40 weight embodying this invention.

WILLLAM s. seasons, on BELMONT, Ass onusnirrs, AssreN-o-Rro cLU'ron ooMPANY, or BOSTON, MASSACHUSETTS, A oonronarroiv or MAINE.

'snotrronan SASH-WEIGHT.

Specification of Letters Patent.

Patented. March 16, 1909,

Application and February 9, 1905. Serial in. 244,848.

To all whom it may concern:

Be it known that I, WILLIAM S. SANBORN, a citizenof the United States, residing in Belmen t,.'in the county of Middlesex and State ment in Sectional Sash-Weights, of which the following description, in connection with the accompanying drawin s, is a specification, like characters on tie drawings This invention relates to a sectional weight and wherein shown as embod ed in a sectional window'weight.

The invention has for its object to prov yide a sectional weight of the class described,

111 which the sections are locked together against. accidental disengagement, thereby enabling the sections to be assembled together more quickly and without liability .of

accidents due to the sections'becoming uncoupled especially in the act of lifting the connected weights into a vertical position preparatory to hanging the same in their operative osition. For this purpose, a

wei' ht section is provided at one end with a hoe which engages a pin or projection on. the lower end of a cooperating section, the said hook having a locking PYOJGCtlOIl' as will be described, which projects under the pin when two sections are coupled together and occupy a substantially vertical position, the said locking projection cooperating with s'aid pin so as to prevent disengagement of the weight sections until one is positively be described. These and other features of this invention will be pointed out in the claims at the end of this specification.

igure 1 is a front elevation of a septional 1g. 2, a sidev elevation of the Weight shown in Fig. 1. Fig. 3', a side elevation of the weight shown in Fig. l, with the lower section turned at an angle to the upper section.

Fig. 4, aside elevation of the weight showing .sition, and When in t. e position of the sections when about to be dlsengaged, andFigs. 5 and'6, details to be referred to.

In the present instance, the invention is shown in a sectional whidow weight comprising two sections a, b, but'it is evident any desired number of sections may be coupled together. The upper section a is provided at its lower end with a tongue or extension 0 having lugs or projections (Z extended laterally from its opposite sides (see Fig. 5).

he lower section b is provided at its upper end with two hooks e separated from each other by a space substantially equal to the thickness of the tongue 0 on the section a.

The hooks e are of like constructioh, and each is provided with a substantially straight bottom outer surface 2, extended transversely of the weight section, a substantially straight outer top upper surface 3, and an intermediate connecting outer curved surface 4. The bottom surface 2 of the hook e forms theupper wall of a slot 5 extended transversely of the weight section from the front side 6 thereof and communicating with a rentrant slot 7, which extends u ward and toward the front side 6 of tile Weight section. One wall of the reentrant slot 7 is formed by the inclined or curved inner surface 8 of the hook e, and this surface 8 cooperates with the bottom surface 2 of the hook to form a locking projection 9, which extends under the lug or pin (it when the weightlsections are in their vertical position represented in Fig. 1, which position may be designated their operative or normal pothis position, the locking projection 9 on the inner end of the hook extends preferably to a vertical line through the center of the lug or pin cZ The section b is with a tongue 0 having the laterally extendedlugs or'pi'ns d, which are adapted to be engaged by thehooks e of another weight section of like construction to the section b. The tongue 0 is preferably made circular at its lower end and of a thickness substantially e ual to one-third the thickness 01' width 0 the weight sections, and the hooks e are made. of equal width or thickness, so that when the sections are coupled together a compact structure is made with a minimum amount of lost space as clearly shown in Figs. 1 and 2.

' The upper weight section a may be provided at its upper end with a hook e, to w ich the hanging cord 9 may be secured, but if desired, the said section may be provided with a socket It for the reception-of aknot 10 in the cord 9, which is passed through a suitable hole 12 in the top of the weight section a.

The locking projection 9 on the hook e serves to prevent accidental disengagement of the weight sections, which is especially advantageous as it enables the weight sections NATIONAL BRAKE AND provided at its lower end to be coupled together with less care on the part of the workman, who is thereby enabled to Work faster and. thus effect a saving in time, but niore'particularly the lo'cking'projection safeguards against accidents caused by the unhooking of sections of the weight when an upper weight section is lifted to a vertical position substantially at right angles to a lower weight section as frequently occurs when the weight sections are assembled and lifted to hang them in the usual box or pocket in the Window.

In )ractice,- the weight sections are frequently assembled and laid in a horizontal osition on the window sill, and when asse1n led, the workman lifts the assembled weight by the head section a. As the uppermost sections are lifted, each assumes a vertical position substantially at right angles to the next contiguous section, and the lower sections in this manner have become detached, and in some instances, have dropped to the ground. It is evident that serious accidents might happen in this manner, and it is one of the objects of this invention to construct a sectional weight, with which such accidents could be avoided. This result is accomplished by providing the book 0 with the ocking Pl'OjGOtlOIl which. requires positive engagement and disengagement by hand of the weight sections. a, b, are shown in their operative position.

In Bi ,2, the sections In Fig. 3, the section b is represented as being lifted by the section a. In "s figure it will be observed, that while the section. a is in a vertical position and the section is partially lifted and in an inclined position, both sections are positively locked and cannot be unlocked while occupying this position, for the reason, that in order to clear the pin (1, the section I) would. have to be moved upward, but said upward movement is limited to t distance between the curved surface l and the bottom 14. of the weight section a, which distance is not sullicient to have the hoot; clear the sin (2. It is therefore necessary, in order to disengage the section 7), for it to as suine a position more nearly at right angles to the section a, and then to be moved bodily in a direct-ion at an angle to a vr-uftical line through the. pin d so as to bring the said pin.

into the slot 5 (see Fig. 4), after which the section is moved 1n a dilfercnt dlrection at an angle to the first i'nentioneu direction in order gage the same as above described. It will thus be seen that in order to engage one section as b with another section as a, or to. dis engage the same, requires bodily movement of one section with relation to the other section, in two different directions at an angle to each other, and as a result, accidental disengagement of said sections, especially in hanging the weight is prevented. It will fore, while I may prefer to use the locking )rojections on the hooks, I do not desire to limit my invention in this respect.

It will be not-iced from an inspection of Fig.- 2, that the upper surface of the hook on a lower section cooperates with the lower surface 14 of an upper Weight section, and that this engagement prevents substantially longitudinal movement of one section with relation to the other, while said sections are substantially in line with each other.

Claims. 1

i. In a weight of the character described, in combination, a weight section provided at its lower end with a tongue having laterally extended pins or projections, and a coopersting weight section provided with books separated from each other for the reception between them of said tongue said hooks having reentrant slots for the reception of thepins or projections on said tongue, substantially as described. I

2. In a weightof the character described.

in combination, a weight section provided at one end with a laterally extended pin or pro ection, and a cr-ioporating weight section provided with ahook having a slotextended transversely of the weight section and a sec- 1 end slot extended at a substantially acuteaugle to the first mentioned slot to form a locking projection on said hook, substantially described. I

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses. i

WI LLIAM S. SANBORN.

Witnesses:

LAURENCE Wnrrcons, J. hIURPHY. 

